69682421 has 2 divisors, whose sum is σ = 69682422. Its totient is φ = 69682420.

The previous prime is 69682399. The next prime is 69682427. The reversal of 69682421 is 12428696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61622500 + 8059921 = 7850^2 + 2839^2 .

It is a cyclic number.

It is not a de Polignac number, because 69682421 - 2⁶ = 69682357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69682427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34841210 + 34841211.

It is an arithmetic number, because the mean of its divisors is an integer number (34841211).

Almost surely, 2^69682421 is an apocalyptic number.

It is an amenable number.

69682421 is a deficient number, since it is larger than the sum of its proper divisors (1).

69682421 is an equidigital number, since it uses as much as digits as its factorization.

69682421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 69682421 is about 8347.5997148881. The cubic root of 69682421 is about 411.5043309369.

The spelling of 69682421 in words is "sixty-nine million, six hundred eighty-two thousand, four hundred twenty-one".